Ball roller assembly



FIG. 1 is an upper perspective view of a ball roller assembly showing the present disclosure.

FIG. 2 is a lower perspective view of the ball roller assembly;

FIG. 3 is a front view of the ball roller assembly;

FIG. 4 is a rear view of the ball roller assembly;

FIG. 5 is a right side view of the ball roller assembly;

FIG. 6 is a left side view of the ball roller assembly;

FIG. 7 is a top view of the ball roller assembly; and,

FIG. 8 is a bottom view of the ball roller assembly.

The broken lines showing in the drawings are for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a ball roller assembly, as shown and described. 